Sluice mat



FIG. 1 is a perspective view of my new design;

FIG. 2 is a front elevational view of FIG. 1;

FIG. 3 is a rear elevational view of FIG. 1;

FIG. 4 is a right-side elevational view of FIG. 1; and,

FIG. 5 is a top plan view of FIG. 1.

The portions shown between broken lines in the figures form no part of the claimed design. 

CLAIM I claim the ornamental design for a sluice mat, as shown and described. 